UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000058716
Receipt number R000067136
Scientific Title The effect of a digital behavioral intervention for smartphone addiction among university students: A randomized controlled trial
Date of disclosure of the study information 2025/12/31
Last modified on 2025/10/10 14:10:06

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Basic information

Public title

Digital Solution for Reducing Smartphone Overuse in Chinese College Students

Acronym

DiSReSCO

Scientific Title

The effect of a digital behavioral intervention for smartphone addiction among university students: A randomized controlled trial

Scientific Title:Acronym

DBISA-RCT

Region

Asia(except Japan)


Condition

Condition

Smartphone usage addiction or dependence

Classification by specialty

Psychosomatic Internal Medicine Psychiatry Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

This study will implement a psychological-behavioral intervention combining compassion-focused therapy and implementation intentions for Chinese university students with problematic smartphone use and mental health problems, examining both its effectiveness and underlying mechanisms.
The process does not involve the use of drugs and clinical operations.

Basic objectives2

Safety

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Psychological questionnaires will be used to measure the primary outcomes, which consist of two main result. These outcomes will be assessed using the Smartphone Addiction Scale Short Version and the Patient Health Questionnaire 9, both of which are widely used tools that have been shown to not negatively impact respondents.

Key secondary outcomes

The secondary outcomes will also be measured using tools that possess psychometric validity and have been shown not to negatively impact respondents. The questionnaires employed include the following:

The 8-item version of the Barratt Impulsiveness Scale-11 for measuring impulsivity.
The Short version of the Cognitive Emotion Regulation Questionnaire to assess cognitive emotion regulation.
The Family and Peer Support Questionnaire for evaluating interpersonal relationships.
The Revised Personal Relative Deprivation Scale to measure relative deprivation.
The Brief Self-Control Scale for assessing self-control.

These are the secondary outcomes currently planned, with the possibility of adding more questionnaires in the future.


Base

Study type

Interventional


Study design

Basic design

Factorial

Randomization

Randomized

Randomization unit

Cluster

Blinding

Double blind -all involved are blinded

Control

Active

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

YES

Concealment

No need to know


Intervention

No. of arms

3

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Behavior,custom

Interventions/Control_1

CFT+II group:
This group employs compassion-focused therapy and implementation intention strategies to address problematic smartphone use and mental health concerns among Chinese university students. Participants receiving the intervention will be provided with specially designed video and text materials lasting approximately one hour.

Interventions/Control_2

Only II group:
This group employs implementation intention strategies to address problematic smartphone use and mental health concerns among Chinese university students. Participants receiving the intervention will be provided with specially designed video and text materials lasting approximately half hour.

Interventions/Control_3

Active control group:
The participants in this group only receive health information only.

Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit

30 years-old >

Gender

Male and Female

Key inclusion criteria

1:aged 18 years or older
2:Score greater than 33 for females and 31 for males on the smartphone Addiction Scale short version
3:Score greater than 2 on the Patient Health Questionnaire-4 scale
4:able to provide informed consent

Key exclusion criteria

1:presence or history of neurologicalor neurodegenerative disorder
2:sensory impairments (e.g., vision or hearing problems) that preclude assessments
3:having a diagnosis of intellectual disability (IQ<70) or a pervasive developmental disorder (e.g., autism spectrum disorder)
4:having a current diagnosis of substance use disorder (excluding Cannabis and Tobacco in the past months).

Target sample size

400


Research contact person

Name of lead principal investigator

1st name Rui
Middle name
Last name She

Organization

The Hong Kong Polytechnic University

Division name

Department of Rehabilitation Sciences

Zip code

999077

Address

The Hong Kong Polytechnic University Hung Hom, Kowloon Hong Kong SAR, China

TEL

8613027936690

Email

sherry-rui.she@polyu.edu.hk


Public contact

Name of contact person

1st name Rui
Middle name
Last name She

Organization

The Hong Kong Polytechnic University

Division name

Department of Rehabilitation Sciences

Zip code

999077

Address

The Hong Kong Polytechnic University Hung Hom, Kowloon Hong Kong SAR, China

TEL

8613027936690

Homepage URL


Email

sherry-rui.she@polyu.edu.hk


Sponsor or person

Institute

The Hong Kong Polytechnic University

Institute

Department

Personal name



Funding Source

Organization

The study is supported by the Start-up Fund in the Hong Kong Polytechnic University

Organization

Division

Category of Funding Organization

Outside Japan

Nationality of Funding Organization

The Hong Kong Polytechnic University Department of Rehabilitation Sciences


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

The Hong Kong Polytechnic University

Address

The Hong Kong Polytechnic University Hung Hom, Kowloon Hong Kong SAR, China

Tel

(852) 3400-3635

Email

RS.EthicsAdmin@polyu.edu.hk


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2025 Year 12 Month 31 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2025 Year 06 Month 25 Day

Date of IRB

2025 Year 06 Month 25 Day

Anticipated trial start date

2025 Year 09 Month 01 Day

Last follow-up date

2025 Year 11 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 08 Month 06 Day

Last modified on

2025 Year 10 Month 10 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067136